Loud fan on Powermac G5

[Stefan Bruda]

At 10:47 -0700 on 2004-9-15 Arrigo Benedetti wrote:
 >
 > I've had the same problem on and off in OSX.3.5.  It's a machine 
 > design issue, not YDL.  Have the Mac tech guys check it out.

This is *so* unlikely.  It is by far more lilely to be a matter of
kernel configuration.  So check first that you have CONFIG_THERM_PM72
(Device Drivers -> Macintosh device drivers -> Support for thermal
management on PowerMac G5) set in your kernel (if it is not, then set
it, recompile your kernel, and see whether the problem disappears).  I
have heard reports that some kernels will not control the fans even
with CONFIG_THERM_PM72 set, but I am not sure which versions (it
worked for every kernel I worked with, but then I started directly
with a 64-bit kernel on my G5).  Also see
http://forums.gentoo.org/viewtopic.php?t=214051

Stefan

-- 
If it was so, it might be; and if it were so, it would be; but as
it isn't, it ain't. That's logic.
    --Lewis Carroll, Through the Looking-Glass